Quality Notion

Exploring new ways of quality and process voyage

Quantitative management of CAR

Causal Analysis and Resolution (CAR) helps to identify and rectify the root cause of a defect or problem. It can be applied to any process area. Analysis can be qualitative, limited to a fish bone diagram or so. And at the same time it can be more advanced involving quantitative data. The steps below show how to quantify the performance of CAR activities.

  1. Define a measurable parameter based on the root cause of the issue identified.
  2. Determine solution for fixing the root cause.
  3. Measure the performance of the parameter before and after implementing the change.
  4. Perform some hypothetical tests like 2 sample T test or paired T test on the measured parameter.
  5. Compare the predicted performance and actual performance of the data.
  6. If there is no statistically significant difference between the predicted performance and actual performance, it can be assumed that the changes are effective.
  7. If there is a statistically significant difference between the predicted performance and actual performance, it can be assumed that the changes are not effective and another CAR needs to be done.


Leave a Reply

Akhila

Akhila

An emotionally colored and emotionally neutral woman flying across the space between words and whipping up whimsical waves of notion to discern the quantum code of her soul.

View Full Profile →

Subscribe to my blog

Follow me on Twitter

Categories

%d bloggers like this: